Planck usually refers to Max Planck (1858–1947), a German physicist considered to be the founder of quantum theory.
Planck may also refer to:
Science
Astronomy
- Planck (crater)
- Planck (spacecraft)
Physics
- Planck's law, of black-body radiation
- Planck constant
- Planck units
- Planck epoch
- Planck particle
- Planck postulate
People with the surname
- Amalia Planck (1834–1908), Swedish entrepreneur
- Erwin Planck (1893–1945), German politician and resistance fighter
- Gottlieb Jakob Planck (1751–1833), German theologian and historian and grandfather of Max Planck
- Karl Christian Planck (1819–1880), German philosopher
- Nina Planck (born 1971), American food writer
See also
- Max Planck Society, for the Advancement of Science
- Plank (disambiguation)